This appeal is from a summary judgment order quieting title to certain lands in appellee, J. H. Hamlen & Son Co. (hereinafter “Hamlen”). Appellants Vernon White and several neighboring property owners (hereinafter “White”) contend that genuine issues of material fact remain, thus making summary judgment inappropriate. We agree and reverse and remand.
The land at issue in this case is located on Hardin Island, a large island on the Arkansas River. Hamlen acquired title to a portion of the island in 1982. White and the other appellants own property located eastward and across the river from Hardin Island. However, the southeastern portion of the island claimed by appel-lee lies within the metes and bounds descriptions of appellants’ property. Appellants, or their predecessors in title, have had title to their land since the mid-1940s or early 1950s.
Hardin Island was originally a peninsula connected to the west side of the mainland. Over thirty years ago, the Arkansas River, in its southeastward movement toward the Mississippi River, took an easterly turn at a certain point in Jefferson County, meandering around Hardin peninsula before returning to its main channel. This part of the river was known as Brodie Bend. In about 1966, the river’s course was changed when the United States government condemned 3,317 acres of land, including over 300 acres on the Hardin property, to complete the Brodie Bend Cut-Off Project. The project straightened the river’s course, severing Hardin peninsula from the mainland. The peninsula thus became Hardin Island. The former river channel that had meandered around the peninsula became a slackwater. This slackwater now lies between Hardin Island to the west and White’s mainland property to the east.
On September 1, 1992, Hamlen filed suit in Jefferson County Chancery Court seeking to quiet title to the eastern shore of Hardin Island, i.e., that part of the island lying directly across the slackwater from White’s property. Hamlen alleged that, for many years prior to the Brodie Bend Cut-Off Project, the river *393eroded the shoreline of the eastern bank where White’s land was situated. The resulting silt and sediment were deposited along the western bank, thus becoming part of the future Hardin Island area by the process of accretion. White disputed Hamlen’s contention and counterclaimed, seeking to quiet the title to the property in himself and his neighbors.
On December 28, 1993, Hamlen filed a motion for summary judgment with six exhibits. The first five exhibits were aerial photographs taken in 1945, 1948, 1950, 1951, and 1957, and the sixth exhibit was a set of drawings prepared by Dan Robison, a registered land surveyor. Hamlen contended that these exhibits were conclusive proof that over a gradual period of time, White’s land lying east of the river bank was lost by erosion and was deposited on Hardin Island, thereby vesting title to the increased land mass in it.
White did not dispute the changes in the river’s course during the twelve-year period shown by Hamlen’s exhibits but argued that Hamlen’s proof did not establish that the portion of Hardin Island lying within the legal description of his land was caused by accretion (a slow and gradual addition or building up of lands due to the deposit of sediment eroded from upstream lands) rather than avulsion (a sudden and rapid disruption of a piece of ground due to the change in the course of a river), which would have allowed White to retain ownership. White also claimed title to the disputed lands pursuant to Ark. Code Ann. § 22-5-403 (Repl. 1996), which concerns the formation of lands in navigable waters. Further, White argued that Hamlen had not proved that the land lost by accretion from White’s property was actually deposited on Hamlen’s land. Attached to White’s response was the affidavit of an employee of the United States Corps of Engineers, Louis Kealer, asserting that the government owned 343 acres of land on Hardin Island. According to White, even if the land that had eroded from his land was deposited on Hardin Island, the accretion could have been deposited on the government’s property and not that claimed by Hamlen.
*394Following a hearing, the chancellor granted Hamlen’s motion for summary judgment. He concluded that: 1) Hamlen’s exhibits reflected a consistent pattern of erosion along the eastern bank of the river where White’s property is situated; 2) the change in the course of the river was a slow, gradual process; 3) there was no evidence to support White’s theory of avulsion; 4) Hamlen made a prima facie showing of entitlement to summary judgment, and the proof offered by White in response — Kealer’s affidavit — did not create a genuine issue of material fact; and 5) Ark. Code Ann. § 22-5-403 did not apply in this case. White’s appeal is brought from these rulings.
Our standard of review in summary judgment cases is well recognized. While it is no longer considered a drastic remedy, summary judgment is only appropriate when the state of the evidence as portrayed by the pleadings, affidavits, discovery responses, and admissions on file is such that the non-moving party is not entitled to a day in court. Guidry v. Harp’s Food Stores, Inc., 66 Ark. App. 93, 987 S.W.2d 755 (1999). The burden of sustaining a motion for summary judgment is on the moving party. Id. On appeal, we view the evidence in a light most favorable to the non-moving party and resolve any doubt against the moving party. Luningham v. Arkansas Poultry Fed’n Ins. Trust, 53 Ark. App. 280, 922 S.W.2d 1 (1996). Our task is to determine whether the evidentiary items presented by the moving party in support of the motion leave a material question of fact unanswered. Id.
We agree with White that material questions of fact exist regarding whether the changes in the land were brought about by accretion or avulsion. A riparian landowner is at the mercy of the river upon which his land is situated. He acquires, incident to his ownership, whatever land may be added by gradual and imperceptible accretion. See Crow v. Johnston, 209 Ark. 1053, 194 S.W.2d 193 (1946). At the same time, he assumes the risk of losing his property by its being gradually washed away by the waters of the river. Id. When a stream changes its course gradually, i.e., by accretion, the boundaries of the riparian land owners *395change with the stream. Goforth v. Wilson, 208 Ark. 35, 184 S.W.2d 814 (1945). When a stream shifts suddenly, i.e., by avulsion, the boundaries of the riparian landowners do not change with the stream. Id. The question of whether accretion or avulsion has occurred is generally one of fact. See Pannell v. Earls, 252 Ark. 385, 483 S.W.2d 440 (1972).
Hamlen’s theory in this case was that a gradual erosion of land occurred along White’s riparian boundary and that the land was deposited along what ultimately became Hardin Island. Hamlen sought to prove its theory by use of the aerial photographs mentioned earlier and by a set of four drawings prepared by a land surveyor. The chancellor noted that the photographs, taken over the twelve-year period between 1945 and 1957, indicated that land had gradually eroded away from a portion of the eastern shore of the river where White’s property lay. However, the four drawings, which depict the river’s course in 1825, 1945, 1957, and 1975, and indicate a dramatic shift in course sometime between 1825 and 1945, then slight shifts in the subsequent years. We cannot say that these exhibits entitle Hamlen to judgment as a matter of law.
First, there is a substantial gap of six years between the last two photographs, during which time change occurred with regard to the river’s course. Additionally, Hamlen’s photographs are illustrative of intermittent moments in a twelve-year window between 1945 and 1957. They do not indicate what effect, if any, the change in the river’s course had during more recent times, especially in light of the Brodie Bend Cut-Off Project, which actually changed the Hardin property from a peninsula to an island. Further, the drawings provided by Hamlen, which cover a 150-year period, show a substantial shift in both location and direction of the curve of the river, from a westward bow to an eastward bow, and from section sixteen to section fifteen, a distance of more than a mile. This shift is so large that the change could be explained, at least in part, by avulsion as much as by accretion. In light of these considerations, we hold that questions of material fact remain to be answered on this issue.
*396 Part of the basis for the chancellor’s decision to grant summary judgment was White’s failure to dispute the changes in the course of the river as shown by Hamlen’s photographs. However, summary judgment is not proper where the evidence, although in no material dispute as to actuality, reveals aspects from which inconsistent hypotheses might reasonably be drawn. Luningham, supra. Further, the chancellor noted White’s failure to meet proof with proof upon Hamlen’s making a prima facie case for summary judgment. Based upon our foregoing analysis of the case, we do not believe Hamlen made a prima facie case. When a movant does not make a prima facie case showing entitlement to summary judgment, the burden of going forward does not shift to the opposing party. Wolner v. Bogaev, 290 Ark. 299, 718 S.W.2d 942 (1986).
We also hold that a fact question remains with regard to the applicability of Ark. Code Ann. § 22-5-403. This statute provides that, when land forms in navigable waters within the original boundaries of the former owner of the land, title vests in the former owner. The purpose of the statute is to give title to the former owner where his land reforms as an island within the boundaries of his original grant. Knight v. Rogers, 202 Ark. 590, 151 S.W.2d 669 (1941). White argues that one of the photographs viewed by the chancellor revealed a large sandbar or island that had formed in the river channel between White’s property and the eastern edge of the peninsula that became Hardin Island and, because section 22-5-403 does not apply to sandbars, the statute was inapplicable. It is true that the statute applies to islands of a permanent character and not to sandbars. See Porter v. Arkansas Western Gas Co., 252 Ark. 958, 482 S.W.2d 598 (1972). However, a reading of the chancellor’s opinion does not convince us that Hamlen’s exhibit shows, as a matter of law, that the formation was an island rather than a sandbar. Therefore, summary judgment was erroneously granted on this point as well.
Finally, we mention an issue raised by White concerning the alleged insufficiency of the property description as contained in Hamlen’s 1982 deed and as set forth in Hamlen’s petition to quiet *397title. Because this issue may be remedied or developed further on remand, we decline to address it now.
Reversed and remanded.
Pittman, Hart, and Rogers, JJ., agree.
Bird and Neal, JJ., dissent.