When actual possession has been had under a claim of right for more than seven years, such claim shall be respected; and the lines shall be marked so as not to interfere with such possession. (Orig. Code 1863, § 2357; Code 1868, § 2354; Code 1873, § 2389; Code 1882, § 2389; Civil Code 1895, § 3248; Civil Code 1910, § 3822; Code 1933, § 85-1603.)